Sand-spreader.



T. KERNER.

SAND SPREADER. APPLICATION FILED DEC. 21. 1918.

1 ,297,361 Patented Mar. 18, 1919.

sin a:

Assn

THEODORE KERNER, OF MILWAUKEE, WISCONSIN.

SAND-SPREADER.

Application filed December 21, 1918. Serial N 0. 267,760.

To all whom it may concern:

Be it known that I, THEODORE KnRNnR, a citizen of the United States,residing at Milwaukee, in the county of Milwaukee and State ofWisconsin, have invented certain new and useful Improvements in SandSpreaders, of which the following is a specification, reference beinghad to the accompanying drawing, forming a part thereof.

This invention relates to a tool or implement for applying sand or thelike to walls or surfaces coated with paint or adhesive material. 7

The object of the invention is to facilitate evenly spreading sand inathin layer on'a surface coated with an adhesive material such as paint,for the purpose of renewing or restoring stained or soiled walls orresurfacing the walls of old buildings in imitation of brick, tile orthe like.

It consists in the construction, arrangement and combination of parts ashereinafter particularly described and pointed out in the claims.

In the accompanying drawing like characters designate the same parts inboth figures.

Figure 1 is a front elevation of a sand spreading tool or implementembodying the invention, a part of the door of the filling opening beingbroken away; and Fig. 2 is a vertical section of the tool on the line 22, Fig. 1.

- The tool or implement comprises a sand receptacle open on the frontside and having closed ends a, and a closed back I), which may beconveniently made as shown, of sheet metal.

To the inner sides of the ends a of the receptacle are pivotallyfastened end plates 0,

by bolts cl and e. The end plates 0 correspond in shape with, but aresomewhat narrower than the ends a of the receptacle, as shown in Fig. 2.The bolts cl pivotally connect'the plates 0 adjacent to their upper endswith the ends a of the receptacle, while the bolts 6 pass throughtransverse slots 7" in the ends a, as indicated by dotted lines in Fig.2, so that the lower ends of said plates may be adjusted toward and fromthe back b.

An angular plate h, fastened at the ends to the plates 0, extends acrossthe front and lower part of the sand receptacle, forming with the lowerpart of the back-b, an adjustable discharge slot 1', the back beinginclined downwardly and forwardly toward the slot, as shown in Fig. 2.

Baffle plates is, fastened at the ends to the end plates 0, extenddownwardly and backwardly from the front edges of the plates 0 towardthe back 22, terminating at their lower back edges a distance from theback plate, as shown in Fig. 2. The baflie plates are preferably curveddownwardly adjacent to their rear edges, as shown in Fig. 2, and arebowed upwardly at the middle, or inclined longitudinally downward towardtheir ends, as shown in Fig. 1, to distribute the sand with which thereceptacle is filled .or supplied toward the ends.

A wire screen of the proper mesh to permit particles or grains of sandunder a certain size to pass through it, is fastened at the ends to theplates 0 and extends downwardly and forwardly across the lower part ofthe receptacle to the inner or lower edge of a downwardly and backwardlyinclined flange n on the plate h.

A downwardly and backwardly inclined hinge plate or bar 39 is fastenedat the ends to the end plates 0 a short distance above and parallel withthe flange a of the plate h, with which it forms an upwardly inclinedopening Q for the removal of refuse separated from the sand in itspassage through the screen on. The upward inclination of this opening 9prevents sand from escaping through it when the receptacle is held in anormal upright working position, as shown in Fig. 2, but permits theremoval of screenings therefrom when it is held front down ward.

The sand receptacle is preferably provided with a door 8, to close thefilling opening into the upper'part of the front side of the receptacle,for confining sand therein when it is filled, although this is notindispensable to the successful operation of the tool if it is butpartially filled. This door may be conveniently hinged at its lower edgeto the plate or bar 20, and provided at its upper edge with a catch 25for holding it closed by engagement with an opening or notch in the topof the receptacle, as shown in Fig. 2. The back 6 of the sand receptacleis formed with an extension or flange at below the discharge slot 2',and is provided with a flexible sand spreading flap 1) of some suitablematerial such as celluloid, having a hard smooth surface. An elasticbacking strip w, of rubber or other suitable material, is adj ustablyfastened with the spreading flap Q} to the flange u y, provided withnuts. The downward extenslon or flange a, projecting below the slot, issufficiently flexible, due to the spring or resiliency of the sheetmetal, to permit of its adjustment with the flap v and its backin stripw by the clamping plate 00, to a greater or less inclination to thefront plane of the sand receptacle. The fiap o is adjusted and heldnormally, as shown in Fig. 2, at a downwardand slightly forwardinclination toward its lower edge relative to the front plane of thesand receptacle, which is presented, in the operation of the tool,toward the'wall or surface to be coated.

.The tool isprovided at the back with a handle a, similar to the handleof a plasterers' trowel. V v

In the operation of. the tool, the receptacle being filled or suppliedwith sand and the door s'beingv closed and fastened by the catch t, thetool is'held by the operator with the flap 41 against the wall orsurface to be coated, and carried upwardly with a sweeping movementwhich evenly spreads the sand in a thin layer or coating on the paintedor prepared wall or surface, the receptacle being held and carried at aninclination to and out of contact with the wall or surface. The baffleplates 7c, which partially divide the sand receptacle into compartments,support the sand in the upper compartments, from which it graduallyfiows into the lower compartments through the openings between the lowerrear edges of the baffle plates and the back of the receptacle, therebyrelieving the' sand in the lower compartment from which it is dischargedthrough the slot i, of

the weight of the sand in the upper compartments, preventing theclogging of the discharge slot, and insuring an even flow of the sandthrough the slot until the supply in the receptacle is exhausted,whereupon it is replenished by opening the door 8 and holding thereceptacle with its open front upward.

The openings between the rear lower edges of the baffle plates and theback 19 are preferably of diminishing area downward, asshown in Fig. 2,and by the adjustment of the end plates 0 with the baffle plates andcross plate h,the width of the discharge slot 2' and the lower'openingsat the rear edges'of the baflle plates may be varied so as to regulatethe flow of sand through the discharge slot. a

-Refuse such as shreds and coarse particles, that may be mixed with thesand, are separated therefrom. in its passage to the discharge slot 2'by the screen m, and may be removed from the receptacle through theupwardly inclined opening q by tipping the receptacle forward or holdingit with its front downward, and if necessary, gently shaking it. p

Various changes in details of construction and arrangement of parts maybe made without departure from the principle and scope of the inventionas defined in the following claims.

I claim:

1. A sand spreader comprising a receptacle having closed ends and back,a discharge slot 'alongthe lower side of the front and a flexible flabelow the slot.

2. A sand spreader comprising a receptacle provided with a handle andhaving a discharge slotalong the lower side or the fron and a flexibleflap below the slot;

3. A sand spreader comprising a receptacle having closed ends and back,a discharge slot along the lower side of the front, and downwardly andbackwardly inclined baffle plates.

4.. A sand spreader comprising a'receptacle having closed ends and backand having a discharge slot along the lower side of the front, aflexible flap below the slot, and downwardly and backwardly inclinedbaffie platesextendin from end to end.:

5. A sand sprea er comprising a receptacle having closed ends and back,a discharge slot along the lower side of the front, and downwardly andbackwardlyinclined baffle plates adjustablyfastened to the ends of thereceptacle.

6. A sand spreader comprising. a receptacle provided with a handle andhaving closed ends and back and a discharge slot along the lower side ofthe front, and a flexible flap adjustably attached to the receptacleandextending below and parallel'wlth ing strip to the downwardextensionof the 7 back below the slot. V

8. A sand spreader comprising a receptacle having closed ends and back,a filling opening in the upper part and a discharge slot along the lowerside of the front, baffle plates extending from the front downwardly andbackwarclly and terminating at their rear lower edges a distance fromthe back, and a door for closing the filling opening.

9. A sand spreader comprising a receptacle having closed ends and back,a filling opening in the upper part and a discharge slot along the lowerside of the front, and

baffle plates extending from end to end of the receptacle and from thefront downwardly toward the back and inclined longitudinally downwardtoward the ends.

10. A sand spreader comprising a receptacle having closed ends and backand a filling opening in the upper part and a discharge slot along thelower side of the front, a flexible flap below the slot and a screenabove the slot. a

11. A sand spreader comprising a receptacle having closed ends and backand an open front, end plates adjustab-ly fastened to the inner sides ofthe ends of the receptacle, baflle plates fastened at the ends to theend plates and extending from the front downwardly and backwardly towardthe back, and a cross piece fastened at the ends to the end plates andforming with the lower part of the back an adjustable discharge slot.

In witness whereof I hereto affix my sig nature.

THEODORE KERNER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

